ccd on NATA problem - ata0: FAILURE - oversized DMA transfer attempt 73728 > 65536

Matthew Dillon dillon at apollo.backplane.com
Tue Jul 17 22:53:00 PDT 2007


:On Tue, Jul 10, 2007 at 12:58:16PM +0900, YONETANI Tomokazu wrote:
:> It worked fine as I tested lightly(-j2 buildworld).  I'll try to test later
:> with different max iosize of component devices.
:
:Hi, I tried to reduce the default max_iosize in ata_dmainit()
:to 64 * DEV_BSIZE(=32768), expecting that it reduces si_iosize_max
:as it's assigned ch->dma->max_iosize in ata_attach(), but now NATA
:fails setting up DMA.  Is there any other way to achive the reduced
:iosize?
:
:Cheers.

    Are you running the patch for CCD?  Which I did commit.

					-Matt
					Matthew Dillon 
					<dillon at backplane.com>





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